2139096771 has 12 divisors (see below), whose sum is σ = 3531207472. Its totient is φ = 1222340976.

The previous prime is 2139096763. The next prime is 2139096797. The reversal of 2139096771 is 1776909312.

It is not a de Polignac number, because 2139096771 - 2³ = 2139096763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2139096721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16976896 + ... + 16977021.

Almost surely, 2^2139096771 is an apocalyptic number.

2139096771 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2139096771 is a deficient number, since it is larger than the sum of its proper divisors (1392110701).

2139096771 is a wasteful number, since it uses less digits than its factorization.

2139096771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33953930 (or 33953927 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 2139096771 is about 46250.3704958133. The cubic root of 2139096771 is about 1288.4774157910.

The spelling of 2139096771 in words is "two billion, one hundred thirty-nine million, ninety-six thousand, seven hundred seventy-one".